Can remove the sender and/or the recipient from the key of the greylister.

[apps/pfixtools.git] / postlicyd / filter.c

diff --git a/postlicyd/filter.c b/postlicyd/filter.c
index d145f42..e108b25 100644 (file)
--- a/postlicyd/filter.c
+++ b/postlicyd/filter.c
@@ -50,6 +50,8 @@ static filter_async_handler_t       async_handler = NULL;
 static const filter_hook_t default_hook = {
     .type      = 0,
     .value     = (char*)"DUNNO",
+    .counter   = -1,
+    .cost      = 0,
     .postfix   = true,
     .async     = false,
     .filter_id = 0
@@ -58,6 +60,8 @@ static const filter_hook_t default_hook = {
 static const filter_hook_t async_hook = {
     .type      = 0,
     .value     = NULL,
+    .counter   = -1,
+    .cost      = 0,
     .postfix   = false,
     .async     = true,
     .filter_id = 0
@@ -277,6 +281,7 @@ bool filter_add_hook(filter_t *filter, const char *name, int name_len,
                      const char *value, int value_len)
 {
     filter_hook_t hook;
+    hook.filter_id = -1;
     hook.type  = hook_tokenize(name, name_len);
     if (hook.type == HTK_UNKNOWN) {
         err("unknown hook type %.*s", name_len, name);
@@ -288,13 +293,42 @@ bool filter_add_hook(filter_t *filter, const char *name, int name_len,
         return false;
     }
     hook.async   = false;
+
+    /* Value format is (counter:id:incr)?(postfix:reply|filter_name)
+     */
+    hook.value = NULL;
+    if (strncmp(value, "counter:", 8) == 0) {
+        char *end = NULL;
+        value += 8;
+        hook.counter = strtol(value, &end, 10);
+        if (end == value || *end != ':') {
+              err("hook %s, cannot read counter id", htokens[hook.type]);
+              return false;
+        } else if (hook.counter < 0 || hook.counter >= MAX_COUNTERS) {
+            err("hook %s, invalid counter id %d", htokens[hook.type], hook.counter);
+            return false;
+        }
+        value = end + 1;
+        hook.cost = strtol(value, &end, 10);
+        if (end == value || *end != ':') {
+            err("hook %s, cannot read counter increment", htokens[hook.type]);
+            return false;
+        } else if (hook.cost < 0) {
+            err("hook %s, invalid counter increment value %d", htokens[hook.type],
+                hook.cost);
+            return false;
+        }
+        value = end + 1;
+    } else {
+        hook.counter = -1;
+        hook.cost    = 0;
+    }
     hook.postfix = (strncmp(value, "postfix:", 8) == 0);
     if (hook.postfix && query_format(NULL, 0, value + 8, NULL) == -1) {
         err("invalid formatted text \"%s\"", value + 8);
         return false;
     }
     hook.value = m_strdup(hook.postfix ? value + 8 : value);
-    hook.filter_id = -1;
     array_add(filter->hooks, hook);
     return true;
 }
@@ -319,6 +353,12 @@ void filter_context_wipe(filter_context_t *context)
     }
 }
 
+void filter_context_clean(filter_context_t *context)
+{
+    p_clear(&context->counters, 1);
+    context->instance[0] = '\0';
+}
+
 void filter_post_async_result(filter_context_t *context, filter_result_t result)
 {
     const filter_t *filter = context->current_filter;